45118253445381 has 16 divisors (see below), whose sum is σ = 66842635321600. Its totient is φ = 30078485365824.

The previous prime is 45118253445379. The next prime is 45118253445389. The reversal of 45118253445381 is 18354435281154.

45118253445381 is a `hidden beast` number, since 4 + 5 + 1 + 1 + 8 + 253 + 4 + 4 + 5 + 381 = 666.

It is not a de Polignac number, because 45118253445381 - 2¹ = 45118253445379 is a prime.

It is a super-2 number, since 2×45118253445381² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45118253445389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7357501 + ... + 12015378.

It is an arithmetic number, because the mean of its divisors is an integer number (4177664707600).

Almost surely, 2^{45118253445381} is an apocalyptic number.

It is an amenable number.

45118253445381 is a deficient number, since it is larger than the sum of its proper divisors (21724381876219).

45118253445381 is a wasteful number, since it uses less digits than its factorization.

45118253445381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19459145 (or 19459139 counting only the distinct ones).

The product of its digits is 9216000, while the sum is 54.

The spelling of 45118253445381 in words is "forty-five trillion, one hundred eighteen billion, two hundred fifty-three million, four hundred forty-five thousand, three hundred eighty-one".